2 Chronicles 20:31-37 - The End Of Jehoshaphat's Reign
31 Jehoshaphat reigned over Judah, having become king at the age of 35. He reigned in Jerusalem for 25 years. His mother's name was Azubah, the daughter of Shilhi. 32 He followed the example of his father Asa and never departed from it, practicing what the LORD considered to be right. 33 However, the high places were not removed, since the people had not yet directed their hearts to the God of their ancestors.
34 The rest of Jehoshaphat's accomplishments, from first to last, are recorded in the annals of Hanani's son Jehu, which appears in the Book of the Kings of Israel.
35 Sometime later, King Jehoshaphat of Judah entered into a military alliance with King Ahaziah of Israel, acting wickedly by doing so. 36 He also agreed with King Ahaziah to build ships to sail toward Tarshish, which they built in Ezion-geber. 37 But Dodavahu's son Eliezer from Mareshah prophesied in opposition to Jehoshaphat, "Because you have entered into an alliance with Ahaziah, the LORD has destroyed your efforts." So the ships were destroyed and were never able to sail for Tarshish.